| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] back to [noun sg] | 79 |
|
| 2 | [modal v] [to-vb] [adv] to [noun sg] | 13 |
|
| 3 | [modal v] [to-vb] back to [noun] | 8 |
|
| 4 | [modal v] [to-vb] back [prep] [noun sg] | 6 |
|
